cisco XR 12000 series and Cisco 12000

[ncnaveen_arasu]

Dear team,

What is the diffrence between cisco XR 12000 series and  Cisco 12000 series router. Please expalin.

Thanks & Regards,

Naveen

[Giuseppe Larosa]

Hello Naveen,

the original GSR 12000 was shipped with IOS image running on the route processor.

Conversion to IOS XR of a GSR 12000 was possible if the route processor was a PRP-2.

However, there are other requirements that involve the type of linecards supported and the amount of memory that must be installed in each linecard to be able to support migration to IOS XR.

see for example

http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.8/migration/user/guide/up38upinst.html

The XR 12000 is a C12000 running IOS XR on route processor PRP-2 or PRP-3.

Cisco has stopped to support IOS for 12000 and only IOS XR is now shipped with PRP-3.

Hope to help

Giuseppe